Ramp guy in Phoenix asked me why I torque the same bolt twice, and I couldn't answer him
Last Tuesday I'm doing a nose gear check on a 737 out at Sky Harbor and this new kid on the crew, maybe 19, stands there watching me hit the same axle nut with the wrench two times in a row. He waits until I'm done and just says "what was the second one for?" I open my mouth to explain and realize I have no idea, it's just what the guy who trained me did back in 2016. So now I'm standing on the ramp in 105 degree heat trying to invent a reason for a habit I've had for years. Has anyone else caught themselves doing something purely because that's how they learned it?